See I'm quite not sure. I have guppies and they require a little bit of salt to survive, so I add aquarium salt. I have one rounded Tablespoon added to every 5 gallons of water. So does this mean it's brackish? Salt? Or still fresh?

See I'm quite not sure. I have guppies and they require a little bit of salt to survive, so I add aquarium salt. I have one rounded Tablespoon added to every 5 gallons of water. So does this mean it's brackish? Salt? Or still fresh?

Hello al...

Brackish water holds .5 to 30 grams of salt per quart of water. Since you add a tablespoon of salt to every 5 gallons of water, I'd definitely say the water is brackish.

Your livebearing fish don't need as much as you're dosing. A rounded teaspoon is plenty. Your plants will appreciate less.

B

__________________"Fear not, my young apprentice. Just change the tank water."

Interesting. My source defines brackish as a measure of salinity and includes sodium chloride as one of the sources of salinity. Whatever the case, the poster is welcomed to use a little salt in their fish tanks or not. I prefer to use a little, to avoid the possibility of using more later.

Have a good one!

B

__________________

__________________"Fear not, my young apprentice. Just change the tank water."